This was done for FC. Interestingly it was originally inspired by a drawing workshop I was running on drawing males; I'd created four feilne guys of different builds as visual aids, and ended up putting four color pics of them in the art show.
So, this is all of them together, and hopefully now you can see the running visual theme here. I basically drew two poses and copied it across all four images, only altering things like neck and hands for each one.
The backgrounds were all drawn separately, and this just happened to end up being the nicest arrangement, as some things unintentionally lined up rather well.